You have to think about your situation before renewal.
In my case, I purchased 5 days Edge card (+ 1 free day) last spring and added 3-day loading in January. The price was $309 plus GST and $189 plus GST, which means I spent $522.90 in total for 8 days. Which do you think I should choose for next season? (I’ve already renewed, though. :))

So, in your case, what would you like to do?
Don’t forget about the tax change. If you don’t renew now and purchase early bird in November or add more days in January, you have to spend extra 7% for HST.